The Orbiting Frog Otolith (OFO) was a NASA space program which sent two bullfrogs into orbit on November 9, 1970, for the study of weightlessness. The name, derived through common use, was a functional description of the biological experiment carried by the satellite. Otolith referred to the frog's inner ear balance mechanism.
A bullfrog (Rana catesbeiana), the species which travelled on the OFO-A flight
A Scout B rocket, like this one, launched the OFO.
The Scout family of rockets were American launch vehicles designed to place small satellites into orbit around the Earth. The Scout multistage rocket was the first orbital launch vehicle to be entirely composed of solid fuel stages. It was also the only vehicle of that type until the successful launch of the Japanese Lambda 4S in 1970.
The first launch of Scout B, in 1965.
First launch of satellite on Scout X-1 - Explorer 9, Wallops, 16 Feb 1961
Blue Scout I on LC-18 in 1961
Mercury-Scout 1, an Air Force Blue Scout II launched for NASA